DMC-CF (dimethyl carbonate-carbon fiber) type high-strength composite and application thereof in manhole cover

A DMC-CF and composite material technology, applied in artificial islands, underwater structures, buildings, etc., can solve the problems of affecting the stability of pedestrians and vehicles, reducing the load-bearing strength, and damaging the appearance of the city, so as to facilitate large-area integral molding , good arc resistance performance, and the effect of improving the environment

Inactive Publication Date: 2017-12-01
XIAMEN JINTING IND TRADE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there are mainly two kinds of inspection manhole covers: one is the inspection manhole cover made of cast iron material, which is not only easy to be stolen, but also has high noise when used, and high energy consumption and pollution during production; the other is non-metal composite The inspection manhole cover of the material has poor strength, high brittleness, easy aging, and easy fracture; the expansion coefficient of the steel skeleton and the composite material is different, and it is easy to detach under high temperature and low temperature changes, thereby reducing the bearing strength and shortening the service life
It has become a trap on the road and an uneven "belly button", which affects the stability of pedestrian and vehicle traffic and brings safety hazards, and also damages the appearance of the city.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The embodiment of the present invention provides a DMC-CF type high-strength composite material, which is composed of the following parts: thermosetting resin 20-40, styrene particles 3-6, styrene 4-8, carbon fiber cloth or alkali-free fiber Cloth 1-3, carbon fiber long fiber or non-alkali long fiber 1-5, carbon fiber short fiber or non-alkali short fiber 6-15, resin 0.1-0.3, zinc stearate 1-2, calcium hydroxide 0.2 -0.4, quartz powder or fly ash 15-25, quartz sand 10-15, high calcium powder 10-20, pigment 0.1-0.3.

[0026] In a preferred embodiment of the present invention, a DMC-CF type high-strength composite material is provided, which is composed of the following parts: (1) thermosetting resin 35; (2) styrene particles 5; (3) styrene 6; (4) carbon fiber cloth 3; ⑸ carbon fiber long fiber 3; ⑹ carbon fiber short fiber 15; ⑺ tert-butyl fat 0.1; ⑻ zinc stearate 1; ⑼ calcium hydroxide 0.2; ⑽ quartz powder 20; Pigment 0.2.

[0027] In a preferred embodiment of the pre...

Embodiment 2

[0029] The embodiment of the present invention provides a method for preparing the DMC-CF high-strength composite material described in Embodiment 1, comprising the following steps:

[0030] S1, weigh each component according to the proportion;

[0031] S2, mix and stir styrene particles and styrene for 60-120 minutes until the particles are completely melted to obtain the first mixture, and pour the first mixture into the kneader together with the thermosetting resin, and add resin, stearin Zinc acid, calcium hydroxide and pigment are stirred evenly to obtain the second mixture;

[0032] S3, the second mixture is poured into quartz powder or fly ash, quartz sand and high calcium powder respectively, and stirred evenly in a kneader to obtain a third mixture;

[0033] S4, stirring the third mixture with carbon fiber short fibers or alkali-free short fibers evenly to obtain a composite material mass;

[0034]S5, soak carbon fiber cloth or non-alkali fiber cloth, carbon long fi...

Embodiment 3

[0036] The embodiment of the present invention provides an application of a DMC-CF high-strength composite material in inspection well covers. The DMC-CF high-strength composite material is the DMC-CF high-strength composite material prepared by the method described in Example 2. composite material.

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Abstract

The invention discloses a DMC-CF (dimethyl carbonate-carbon fiber) type high-strength composite and an application thereof in a manhole cover and relates to the technical field of road facilities. The composite has the properties of being light in weight, high in specific strength, high in seismic performance, good in anti-fatigue performance, resistant to high temperature, acid and alkali and chemical corrosion, good in insulation performance, voltage-resistant, higher in mechanical performance, good in damage safety, high in bearing force, high in precision, low in expansion coefficient, high in weather resistance, sufficient in flame retardance, mildew-proof, water-resistant, oil-resistant, resistant to rust, good in damping and noise reducing performance, sound-proof, bounce-proof, high in anti-theft property, environment-friendly, energy-saving, pollution-free, convenient to mount, good in flexibility, high in strain capacity, good in thermodynamic property, favorable for large-area overall forming and maintenance-free; when the composite is applied to preparation of the manhole cover, the problems occurring in the use process of conventional cast iron well lid or a manhole cover made of a non-metal composite in the prior art are solved.

Description

technical field [0001] The invention relates to the technical field of road facilities, in particular to a DMC-CF type high-strength composite material and its application in inspection manhole covers. Background technique [0002] Inspection manhole covers are essential facilities for urban construction and municipal administration, such as tap water, electricity, sewage, telecommunications, cable TV, gas, heat, fire protection, sanitation and other departments. [0003] At present, there are mainly two kinds of inspection manhole covers: one is the inspection manhole cover made of cast iron material, which is not only easy to be stolen, but also has high noise when used, and high energy consumption and pollution during production; the other is non-metal composite The inspection manhole cover of the material has poor strength, high brittleness, easy aging, and easy fracture; the expansion coefficient of the steel skeleton and the composite material is different, and it is e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L101/00C08K13/04C08K7/06C08K5/098C08K3/36C08K3/22E02D29/14
CPCC08L101/00C08K3/22C08K3/36C08K5/098C08K7/06C08K13/04C08K2003/2206C08K2201/014C08L2201/02C08L2201/08E02D29/1472E02D2300/0045
Inventor 陈惠琼
Owner XIAMEN JINTING IND TRADE
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